Tag: M2M tip

This quarter I have a lot of IoT / M2M news for you: 1. Update IoT / M2M Cookbook Since 4 weeks the update is on the server, listed here: http://www.gsm-modem.de/M2M/m2m_iot_cookbook/ More than 12 pages are related to ceramic chip loop antennas for GPS/GLONASS and Bluetooth. Loop antennas have no hand effect and will not […]

IoT / M2M question by email to me: Q: Hi Harald,I found you on m2m.com forum discussion. I am an M2M enthusiast building an M2M PoC. I noticed in one of the m2m.com forum thread you suggested to Wakeup devices using SMS or Voice call. ie. Bootstrap to the GPRS network. I would like to […]

Year 2015 ended and year 2016 started with a big BANG in IoT and M2M. It was not just the firework display at the sky. In the last few weeks at the end of 2015 several rabbit conjure out of the hat: LTE module CAT 1 LTE module CAT 4 LTE module CAT 9 LTE […]

Our third patient has a popular name. The manufacturers have called it the magnetic mount antenna. Further details about the third mobile antenna patient are given in the test below. Here are the medical records of the cellular magnetic mount antenna: Frequency bands: GSM 850/900 MHz, GSM 1800 / 1900 MHz, UMTS 2100 Frequency range: […]

Our second patient has a name as well. The manufacturers have called it the cellular stubby antenna. Further details about the second mobile antenna patient are given in the test below. Here are the medical records of the cellular stubby antenna: Frequency bands: GSM 850/900 MHz, GSM 1800 / 1900 MHz, UMTS 2100 Frequency range: […]

The topic on this evening was “Wireless Technologies for IoT – Antennas and Beacons”. http://www.meetup.com/IoTMunich/events/219391820/?_af_eid=219391820&_af=event&a=uc1_te Thanks to all participants. If I am informed right then 75 out of 148 people with interest in IoT stayed and listened on this evening. Thank you for all the interesting meetings during the event. Nevertheless, I already got several […]

The question as below reach me. I will quote myself. Q: Please let me know the tips , to ensure connectivity all the time. I am loosing connectivity after 2/3 days , I need to manually reconnect by ringing the modem again as on now. A: There are several sources for disconnect. Chapter: AT commands […]

By using of a combined FR4 together with Flex PCB is it possible to bend the PCB and to get a good ground plane for the GSM and GPS antenna. Such PCBs can be useful for tracking of animals, banknotes or tracking of security officers.

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Why I wrote the IoT M2M Cookbook

In my more than 20 years working with a manufacturer and in distribution I gave the same hints and recommendations to developers of wireless applications again and again. In May 2012 I made the decision to write the story that I have to tell weekly to customers in a book. The target is to guideline developers from the idea for an IoT / M2M device to a final product with mass production.
http://www.gsm-modem.de/M2M/m2m_iot_cookbook/